Fitfab: Sql Prefix Table Name

Sql Prefix Table Name

All field names in non trivial sql statements ie. Create table groups id int11 name varchar64.

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Its nonsense that a naming standard of one type or another implicates sloppy coding.

Sql prefix table name. Hence prefixing or suffixing table names by groups may make sense. The pk fields used the full table name as a prefix and all other columns used 2 4 characters consistently as their prefix. Query select schemanametschemaid as schemaname tname as tablename from systables t where tname like hr order by tablename schemaname.

The use of the tblprefix for a table often called tibbling came from databases imported from access when sql server was first introduced. Query below finds tables which names start with specific prefix eg. Tables with names starting with hr.

All the sql server table names have a prefix of dbo and i cant now remember assuming i ever knew where this prefix came from. Of course that is one of the strengths of a view as an abstraction but i digress. Of course the prefix is up to you depending on how verbose you like your code.

If youre worried about mixing up your table names employ a hungarian notation style system in your code. They say we should prefix the object like this dbotblfoo. I have now created a copy of this database for test purposes and the table prefixes are all still set to dbo.

The extra prefix is redundant. You may end up with 500 tables in a single schema. But schema is single level only.

Now they can see that the object is a table probably in the above query. I have the following tables create table constraints id int11 name varchar64 type varchar64. Schemaname name of schema table was found in.

Sql server 2005 has introduced schemas the following naming is better. Some guides suggest prefixing the table name in the primary key field name ie. Each column also used a data domain as its suffix.

Unfortunately this was an access convention inherited from visual basic a loosely typed language. One of the core complaints of the prefixers is that they dont know if dbofoo is a table or a view. If done consistently it can be very nice and clean.

Those with more than one table should be explicitly qualified and prefixing as a form of namespacing field names is a bad idea. Perhaps s for string tn for table name.

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